Answer:
The answer is 20 feet
Step-by-step explanation:
Area of rectangle = 400 square feet
Base of rectangle = 20 feet
Height of rectangle = ?
A = b × h
Now,
A = b × h
h = A/b
h = 400/20 feet
h = 20 feet
Thus, The answer is 20 feet
-TheUnknownScientist 72